Trucking is inherently an interstate, and even international, industry. Sure, some companies may never cross state lines, but at some point, most will. Typically, states (and Canadian provinces) collect fuel taxes for vehicles traveling their roadways to pay for road maintenance and other infrastructure projects. With their large fuel tanks, though, some trucks may never stop in a state when they pass through. The result is wear and tear on the roads, but no revenue for the state.
To combat...
https://www.freightwaves.com/news/5-red-flags-that-can-trigger-an-ifta-audit